Pls Answer!!!! Will make Brainliest!!!


1. Show that (a+bi)^2 = (a+b)(a−b) + 2abi


2. Show that (2x+i)(2x−i) = 4x2 +1


3. Show that (1+i)2 = 2i

Answers

Answer 1

Step-by-step explanation:

sorry i sent the wrong image hold on


Related Questions

I need help I will give brainiest​

Answers

Yup It’s B!!!!!!!!!!!!

In circle Y, what is m∠1?


25°
31°
37°

Answers

9514 1404 393

Answer:

  (c)  31°

Step-by-step explanation:

Angles 1 and 2 are congruent. Each is half the sum of the subtended arcs:

  ∠1 = ∠2 = (37° +25°)/2 = 31°

Answer:

C. 31°

Step-by-step explanation:

HELP!!! GEOMETRY 15 POINTS

Answers

Yes, the depth of China is 29.45 feet.

factor expression completely 5/6y - 25/42

Answers

Answer:

yasssssssss queen

Step-by-step explanation:

Translate the given phrase to an expression.
The quotient of 15 and 2
The expression is (Do not simplify)

Answers

Answer:

15/2=7 R1

Step-by-step explanation:

Help pls and thank you :)

Answers

The answer is d.....

Distribute and Simplify: (p + 3)5

Answers

Answer:

5p+5

Explanation:

5(p+3)

(5*p)+(5*3)

5p+5

PLS HELP ASAP What is the positive number that is 7 times its rightmost digit?????

Answers

Answer:

71

Step-by-step explanation:

Uh-

7 is 7 times more than 1

Write an equation in slope-intercept form of the line that is parallel to y = 5x + 12. ​

Answers

Answer:

good luck bro these types of questions  are so annoying im doing one now and is the question from mathswatch

Step-by-step explanation:

The slope is going to be 5 and the y intercept is going to be (0,12)

Triangle A B C is shown with its exterior angles. Line B A extends through point D. Line A B extends through point E. Line A C extends through point F. Which angle's measure is equal to the sum of the measures of ∠BAC and ∠BCA?

Answers

Answer:

∠CBE

Step-by-step explanation:

Find the diagram attached

Using the exterior property of a triangle which states that the sum of interior angles of a triangle is equal to the exterior angle.

Given the following from the diagram

Interior angles are ∠BAC and ∠BCA

Exterior angle = <CBE = a+b

Using the law above,

∠BAC + ∠BCA = ∠CBE

Hence the angle's measure that is equal to the sum of the measures of ∠BAC and ∠BCA is ∠CBE

Answer:

angleCBE

Step-by-step explanation:

A player scored 5 more points than Rodger.

Answers

Answer: 4

Step-by-step explanation:

444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444445444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444444

petrol costs 99p per litre. How much would 47 litres cost?​

Answers

Step-by-step explanation:

[tex]99 \times 47 = 517 \times 9 = 4653[/tex]

Hay you over there
don't be sad
I will be there for you
I will never be mad
Don't ever say you are ugly
Because you are beautiful
I love it when you're giggly
and when you're joyful
You are perfect in every way
You are cute, funny, and smart
I miss you saying hay
without you I'm falling apart
Don't listen to the judgers
listen to your heart
You are perfect
you are you
and who you are meant to be
if you don't believe me
look into my eyes and you will see

Who ever is reading this:

I love u.

U matter.

The world needs u

hang in there ik it may be bad but u deserve the world <3

ur beautiful no matter ur shape, size, color, gender.. anything

don't give up i need u to live.

i wish i could take everyones problems so yall wouldn't have to have em but i cant so just know ily and if anyone needs to talk u can talk to me

Pls pass this on. Everyone deserves to know this. ♥️♥️

I passed it on. now its your turn :)​

Answers

never going to left you go

never going to left you down

Which subtraction expression does the number line model show?

Answers

The subtraction expression shows C. -4-9

Question 1 (2 points)
Find the slope and y-intercept for the graph below.
m
b

Answers

Answer:

The slope is:

[tex] \frac{5}{2} [/tex]

The y-intercept is:

-3

it takes 2 painters 5 hours to finish painting a house. how long would it take to finish painting a house if there were 20 painters working at the same rate?

Answers

Answer:

2 2/9 hours

Step-by-step explanation:

Im pretty Sure Its Correct

20 painters will use 0.5 hours to paint the same house at the same rate it takes 2 painters 5 hours to finish the house.

Let's find how long it take:

It takes 2 painters 5 hours to finish painting a house.

For 20 painters to paint the same work at the same rate, this means the time used to conclude the work will drastically reduced.

Therefore,

if  2 painters uses 5 hours

At the same rate, 20 painters will use = 2 × 5 / 20 = 10 / 20  = 1 / 2 = 0.5 hours.

learn more on rate here: https://brainly.com/question/20718550?referrer=searchResults

What’s the answer please help

Answers

Answer:

{121,144,169} X intersecting Y means common number between x and y set

well it gave me more points for something so here have 10 points​

Answers

Answer:

thanks brainly reset my stuff so thanks I needed it

Answer:

Do you have a question to be answered?

Step-by-step explanation:

Can you solve this math minigame first?
Don't use a calculator.
Whoever gets the most right wins and gets brainliest
Goodluck
----------------
1 x 4
4 x 4
2 x 5
10 x 10
9 x 9
8 x 8
6 x 6
6 x 5
7 x 8
100 x 100 <= solve for THREE points

Answers

4
16
10
100
81
64
30
56
10,000

Create an expression that uses subtraction, division, and at least one exponent and simplifies to 6.

Answers

Answer:

6 itself

Or, (8-2) ÷ 1³ = 6

Step-by-step explanation:

Below is the hint to above answer!

(6- 0) ÷ 1³= 6

Answer:

(6×9)÷[tex]3^{2}[/tex]=6

On a road with 24 streetlights, 3 of them do not work. What is the ratio of streetlights that work to streetlights that do not work?

Answers

Answer:

3:24 or 1:8 simplyfied

Step-by-step explanation:

3 dont work

In preparation for an Easter egg hunt,4 blue eggs are filled for every 7 green eggs. How many green eggs will be filled if 100 blue eggs were filled?

Answers

Answer:

175 green eggs

Step-by-step explanation:

The ratio of blue eggs to green eggs that are filled is 4/7

You can make a proportion:

4/7 = 100/x

x is the number of green eggs filled (x is the answer to the problem.

If you cross-multiply then it will be 700 = 4x

divide by 4 on both sides and x would equal 175.

Edith leaves her home at 11:50 am.
She travels 75 miles at an average speed of 30 mph.
At what time does she finish the journey.

Answers

Answer:

2:30 minutes her journey finish.

distance / speed = time

75 / 30 = 2.5 hours :

it means  2:20 pm they finish her journey

Step-by-step explanation:

Brainliest?

Answer:

2:20 pm

Step-by-step explanation:

30 mph=1 mile every 2 minutes

75 miles x 2 =150 minutes or 2 hours and 30 minutes

11:50 am + 2 hours and 30 minutes = 2:20 pm

What is the unit price if you divide 5.36 by 20 oz?

Answers

Answer:

$0.27 per oz

I hope this helps :)

Help me please ?? ASAP!!

Answers

Answer:

my best guess is answer choice c.

Anwser is C. Hope it helps

Using the formula Distance = rate . time, find the distance covered by an airplane flying at 300 mph for 3 hours.

Answers

900. If your formula is correct, you only have to multiply 300 by 3

HELPPP WIL MARK BRANLIEST IF RIGHTTT

Answers

Answer:

Angle 4 and Angle 6

Step-by-step explanation:

consecutive interior angles**

A 43-foot ladder is leaning against a building and forms a 29.37° angle with the ground. How far away from the building is the base of the ladder? Round your answer to the nearest hundredth. 21.09 feet 24.20 feet 37.47 feet 49.34 feet

Answers

Answer:

37.47 feets

Step-by-step explanation:

Using trigonometry:

The distance of wall from base of ladder is (x) :

Cosine θ = adjacent / hypotenus

Length of ladder = hypotenus ; x = adjacent

Cos 29.37 = x / 43

x = 43 * cos 29.37

x = 43 * 0.8714707

x = 37.473241

x = 37.47

Answer:

37.47 feet

Step-by-step explanation:

I took the test

simplify each algebra expressions by combing like terms 5p + 2p + 6p​

Answers

Answer:

13 P

Step-by-step explanation:

Answer: 13p

Step-by-step explanation:

All three terms have the same variable. Therefore, you can add all three terms together into a singular term (below).

5p + 2p + 6p = 13p

It takes Nathan 67.5 minutes to walk 4.5 miles. Determine the average time it takes for him to
walk one mile,
67.5 minutes
4.5 miles
9 minutes
15 miles

Answers

1 mile per 15 minutes
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